Bleeding in the upper digestive tract (oesophagus, stomach) tends to cause black, tarry stools as the blood is digested for longer than bleeding from the colon, rectum or around the anus which tends to produce red stools or fresh, bright red blood in the stool. Changes in diet (intake of fibre, fluids)
The list of signs and symptoms mentioned in various sources for Decompression sickness includes the 22 symptoms listed below: 1  Joint pains. 2  Headache. 3  Dizziness. 4  Chest pain. 5  Abdominal pain.6  Breathing difficulty. 7  Unconsciousness. 8  Abnormal sensations.eview the available symptom checkers for these symptoms of Decompression sickness: 1  Headache -- Symptom Checker. 2  Abdominal pain -- Symptom Checker. 3  Breathing difficulty -- Symptom Checker.
The symptoms of altitude sickness are mainly due to the fact that the dog gets dehydrated and is unable to breathe normally. 1  The symptoms of altitude sickness in dogs may include: 2  Panting. 3  Excessive drooling. 4  Vomiting. 5  Pale gums. 6  Bleeding from the nose and retina (only in extreme cases) 7  Increased pulse. 8  Dry cough.